/ovarian yolk sac tumor

ovarian yolk sac tumor

Rare Disease

MONDO:0006344

Also Known As

endodermal sinus neoplasm of ovaryendodermal sinus neoplasm of the ovaryendodermal sinus tumor of ovaryendodermal sinus tumor of the ovaryendodermal sinus tumour of ovaryendodermal sinus tumour of the ovarygerm cell endodermal sinus neoplasm of ovarygerm cell endodermal sinus neoplasm of the ovarygerm cell endodermal sinus tumor of ovarygerm cell endodermal sinus tumor of the ovarygerm cell endodermal sinus tumour of ovarygerm cell endodermal sinus tumour of the ovaryovarian endodermal sinus neoplasmovarian endodermal sinus tumorovarian endodermal sinus tumourovarian germ cell endodermal sinus neoplasmovarian germ cell endodermal sinus tumorovarian germ cell endodermal sinus tumourovarian yolk Sac neoplasmovarian yolk sac tumorovary yolk sac tumorovary yolk sac tumouryolk Sac neoplasm of ovaryyolk Sac neoplasm of the ovaryyolk Sac tumor of ovaryyolk Sac tumor of the ovaryyolk Sac tumour of ovaryyolk Sac tumour of the ovaryyolk sac tumoryolk sac tumour

Definition

A usually rapidly growing malignant germ cell tumor arising from the ovary. It usually occurs in children and adolescents. Signs and symptoms include abdominal pain and a large abdominal or pelvic mass. The serum alpha-fetoprotein is almost always elevated preoperatively. Morphologically, there is marked heterogeneity due to numerous patterns of differentiation coexisting in the same tumor. The most common pattern is reticular.